Home / 8,688,982.40-13,035,028.80-3,640,803.20

Finding the Fourth Proportional to 8,688,982.40, 13,035,028.80 and 3,640,803.20

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Solution

The fourth proportional to 8,688,982.40, 13,035,028.80 and 3,640,803.20 is: 5,461,856.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,982.40 : 13,035,028.80 = 3,640,803.20 : x
  2. Step 2: Convert to fraction form
    8,688,982.40/13,035,028.80 = 3,640,803.20/x
  3. Step 3: Cross multiply
    8,688,982.40x = 13,035,028.80 × 3,640,803.20
  4. Step 4: Simplify right side
    8,688,982.40x = 47,457,974,567,132.16
  5. Step 5: Solve for x
    x = 47,457,974,567,132.16/8,688,982.40
  6. Step 6: Final answer
    x = 5,461,856.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.